Home / 29,887.28-41,272.44-18,728.72

Finding the Fourth Proportional to 29,887.28, 41,272.44 and 18,728.72

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Solution

The fourth proportional to 29,887.28, 41,272.44 and 18,728.72 is: 25,863.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,887.28 : 41,272.44 = 18,728.72 : x
  2. Step 2: Convert to fraction form
    29,887.28/41,272.44 = 18,728.72/x
  3. Step 3: Cross multiply
    29,887.28x = 41,272.44 × 18,728.72
  4. Step 4: Simplify right side
    29,887.28x = 772,979,972.48
  5. Step 5: Solve for x
    x = 772,979,972.48/29,887.28
  6. Step 6: Final answer
    x = 25,863.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.